Lyman p



' UNITED STATES PATENT OFFICE.

LYMAN P. CONVERSE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO PETER FISH, OF SAME PLACE.

BURNER.

SPECIFICATION forming part of Letters Patent No. 419,418, dated January 14, 1890.

Application ledApril 23, 1889. Serial No. 308,294. (No model.)

.To all whom t may concern:

Be it known that I, LYMAN P. CONVERSE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Argand Burners, of which the following is a specification.

My invention has for its object the provision of an Argand burner of improved construction for burning hydrocarbon oil, and which will insure combustion of the oil to such a degree as to enable a chimney for the burner to be dispensed with without the consequent production of smoke or unpleasant odor; and it has for its object, more particularly, the provision of suchaburner for use in stoves employing hydrocarbon oil as a fuel, and especially a stove of this description involving improvements of my own invention and forming the subject of a separate application for Letters Patent filed in the United States Patent Office April 4, 1889, and bearing Serial No. 302,972.

My invention consists in the general construction of my improved burner; and it further consists in details of construction and combinations of parts hereinafter set forth and claimed.

In the drawings, Figure l is a broken view in sectional elevation of my aforesaid stove, but without the steam-supply, the view showing my present improvement also in sectional elevation and in operative position; Fig. 2,

an enlarged horizontal sectional view of the burner detached, the section being taken on the line 2 of Fig. l and viewed as indicated by the arrow; and Fig. 3, a broken and partly sectional View of details enlarged.

A represents the stove, provided with an annular oil-reservoir C, which surrounds the Argand burner B and communicates with the latter toward its lower extremity through pipes t t. The outer wall s of the wick-tube flares outward toward its base, as shown, to enlarge the lower part of the annular wickchamber s, thereby to increase the volume of oil contained therein and facilitate saturation of the wick. An annular space r intervenes between the wall s and Vadjacent annular wall r of the stove, the said space being open at its lower end the full width between walls s r and materially reduced at its upper end r2 by an annular plate r3, which projects part wa'y across the space. Within the space bounded by the wick-tube s is a cylindrical tube q', affording an air-space p through it and an air-space q around it. The tube q carries at its upper end a perforated spreader o, surmounted by a detlecting-plate o. Upon the plate r3, surrounding the air-inlet r2, is a flanged ring t', of the form shown, which fits Within an annular projection r4 of the plate.

The mechanism for raising and lowering the wick comprises a tube n within the wich-v chamber, to fit over the inner wall s2 of the latter, having a flaring serrated upperedge n to engage the wick, and a rack m on the opposite side of the walls12 in the space q, and connected with the tube n by a strip m', which extends through a longitudinal slot s3 inthe wall s2. The rack m is engaged by a pinion Zon the end of a shaft Z,which extends through the oil-reservoir C and beyond the stove, where it carries a hand-wheel Z2.' The shaft may be housed in a tubels, provided at its end with a stuffing-box Z4, whereby egress of oil from the wick is prevented. The tube n is provided with a longitudinal slot n2, which fits over the shaft Z and extends from the lower extremity of the tube nearly to its serrated end n. The rack m and pinion Z are housed in a casing la, extending from near the lower end of the burner, where it is closed, to the top of the wick-chamber, at which end it is open. When the wick is ignited, air is fed to the flame through the spaces p and q on the inside and the space r on the outside thereof, the effect of the air-currents thus distributed through the spaces being to aiford a highly-effective feed of the oxygen of the air, while thesupply through the central tube p in addition strikes vthe flame at some height from the wick, and thus tends to produce complete combustion of the carbon carried by the flame.

The flanged ring t' operates to direct the air` entering at 'r2 into the iiame and prevent any escaping without coming into v'contact with the latter.

I have found that by providing the rack m on the inner side of the wick-tube there is no apparent interference thereby with the combustion of the iiame, while where the rack is located 0n the outside of the Wick-tube, asis common in other Arg-and burners employing racks, and of which I am aware, it is found to interfere With the airsupply in a manner to retard combustion and produce smoking. In the use of my improved burner, furthermore, the perforated spreader does not become clogged by products of combustion, as in Argand burners unprovidcd with the airpassage q, which' clogging eiect materially interferes with the combustion and necessitates frequent cleaning1 of the spreader.

That I claim as new, and desire to secure by Letters Patent, is-

1. In an Argand burner, the combination, with the annular Wick-'chamber s, of the airinlet r2 and ring z' about the Wick-tube, airpassag'e p, surmountcd by the spreader o, and air-passagc q Within the space bounded by thc Wall s2 of thc Wick-chamber, the wick- 'engaging tube n Within the Wick-chamber,

rack m in the space q, connected with thc tube n by a strip m', extending through a slot S3 in the wall s2, and pinion Z on the shaft Z, engaging with the rack, substantially as described.

2. In an Argand burner, thc combination, With the annular' Wick-chamber S, of the airinlet r2 and ring rabout the Wick-tube, airpassage 1J, surmounted by the spreader o, and air-passage q Within the space bounded by the wall s2 of the Wick-chamber, the Wick-engaging tuben Within the Wiclcchamber, rack m in the space q, connected with the tube n by a strip m', extending through a slot s3 in the Wall s2, pinion Z on the shaft Z, meshing with the rack, and housing Z.; for the rack and pinion, substantially as described.

LYMAN I. CONVERSE.

J. W. DYBENFORTH, M. J. BOWERS. 

